Automatic shuttle replenishing loom



Filed Sept. l5. 1930 '7 Shee'ts-Sheet #nvm hmm Wham O @NN dmv Na 1/ mM M@W m. w, mm www -,h a un m. om mnh Q mm Nm o o o .www N @WN N u .N a nwamm D N u. N. s N f l l f s I- z b. www: uw l wv //Vl/ENTOR.' @WM v wwwv v www ATTO RNEY Jan. 12, 1932. E, w, STONE K 1,840,855

AUTOMATIC SHUTTLE REPLENISHING LOOM Filed Sept. l5, 1950 7 Sheets-Sheet2 /NVENTOR Jan. 12, 1932. E. w. STONE AUTOMATIC SHUTTLE REPLENTSHINGLoom Filed Sept. l5. 1930 m W n W 7 Sheets-Sheet 3 ATTORNEY Jan. l2,1932. E. w. sToNE AUTOMATIC SHUTTLE REPLENISHING LOOM Filed Sept. l5,1930 7 SheetS-Sheet 4 NNN /NVENTOR .ATTORNEY jan. i2, 1932. W; STQNE1,840,855

AUTOMATIC SHUTTLE REPLENISHING LOOM Filed Sept. 15, 1950 'i'Sheets-Sheet 5 6g 5150 15? /N VEA/TOR ATTORNEY Jan. l2, 1932. E. wqsToNEAUTOMATIC SHUTTLE REPLENISHING Looa V v sheets-shea e Filed Sept. l5,1930 l Jan. l2, 1932. I E. w. STONE 1,840,855

AUTOMATIC SHUTTLE RPLENISHING LOOM Filed Sept. `l5, 1950 7 Sheets-Sheet7 /N VEN TOR B`Y f ATTORNEY N Ik N Patented Jan'. 12, .1932

UNITED vSTATES PATENT oFFlcE EDWIN W. STONE, OF LONGMEADOW,MASSACHUSETTS, ABSIGNOR TO IBIGELOW-BAN- FORD CARPET CO., INC., OFTEOMPSONVILLE, CONNECTICUT, A' CORPORATION OF MASSACHUSETTS AUTOMATICSHUTTLE BEPLENISHING LOOM Application led September 15, 1930. Serial No.481,841.

This inventionrelates to looms ofthe class in which provision is madefor automatically removing an empty shuttle from a shuttle box andsubstituting a full shuttle when sub'- stantial exhaustion of filling isdetected.

Automatic shuttle replenishing looms have been proposed heretofore andin'some prior constructions the loom operation is suspended duringshuttle replenishment, while in other proposed constructions theexhausted shuttle is replaced with a full shuttle during the loomoperation.

In the constructions in which the loom 1s stopped to permit shuttlereplenishment, the shuttle replenishing mechanism must be operated froman independent source of energy, and in looms of this type employing abelt drive it has been proposed heretofore to operate the shuttlereplenishing mechanism from an independent, belt driven shaft that isoperated from the source of power. for the loom but independently of theloom and while the latter is at rest. In other constructions proposedAheretofore electro-magnets have been employed to operate the shuttletransfer mechanism.

An extremely important feature of the present invention resides in anautomatic shuttle replenishing loom having an electric motor that isseparate and distinct from they loomvdriving mechanism and adapted toactuate the shuttle transfer mechanism.

Another important feature of the present invention resides in a shuttlereplenishing loom having an electric motor to drive the loom and aseparate motor to operate the shuttle replenishing mechanism, andprovided 'with switch mechanism controlled by the condition of theilling to stop the loom and start the shuttle replenishin motor whensubstantial exhaustion of lling is detected.

A further feature of the invention resides in the cooperating electricaland mechanical means for stopping the loom motor and starting theshuttle replenishing motor when replenishment of filling is calledandfor stopping the latter motor and` starting the loom motor when theshuttle transfer is completed, and also in manually controlled switchmeans for starting and stopping the loom motor.

Another feature of the invention resides in an electrically controlledbrake associated with the loom motor to quicklv stop the loom, and inelectrical switches under the control of different operating parts ofthe loom and operable to cut o the current to the loom motor and applythe brake to quickly stop the loom whena defect in the weaving operationoccurs.

Still other features of the invention reside in the mechanism forejecting an empty shuttle from a shuttle -box and for transferring afull shuttle from the shuttle magazine to the shuttle box, and in thefilling feeling mechanism for initiating shuttle replenishp ment.

Other features of the invention and novel combination of parts inaddition, to the above will be hereinafter described in connection withthe accompanying drawings, which illustrate a carpet loom embodying theconstruction of the present invention.

Fig. lis a perspective vieweof a pile fabric vloom provided with theshuttle-replenishment mechanism of the present invention;

Fig. 2 is a side elevation with parts in' section of the lloom of Fig.1;

Fig. 3 is an enlarged transverse sectional view through a shuttle boxand shows the filling feeling mechanism.

Fig. 4 is a front elevation of the filling feeling mechanisml of Fig. 3,the lay being omitted.

Fig. 5 is a vertical sectional view through the shuttle supply magazineand lay, the shuttle box being shown open in full lines and closedindotted lines.

Fig. 5a is a perspective view of a detailed part of Fig. 51to bedescribed;

Fig. 6 is a vertical sectional view showing the shuttle box of Fig. 5slightly open;

Fig. 7 on a reduced scale is a top plan View of the shuttle supplymagazine and adjacent shuttle box;

Fig. 8 is a longitudinal sectional view through a gear box containingthe operating cams for the transfer mechanism;

Fig. 9V is a front elevation of a portion of the loom with the gear boxof Fig. 8 shown in section.

Fig. 10 is a top plan View of a shuttle in the right shuttle box, and ofthe cooperating filling feeler.

Fig. 11 is a topplan View of the pile wire actuating mechanism;

Fig. 12 is a vertical sectional view through the wire guiding slotshowing a pile wire in sliding engagement therewith;

Fig. 13 is a top plan view of beam let-0H mechanism of the loom;

Fig. 14 is a perspective view yof a filling fork and filling Shearer inplace upon the loom;

Fig. 15 is a diagrammatic View of the electrical connections forcontrolling the loom motor and shuttle replenishing motor; and

Fig. 16 is a front view with parts in section of a master switch to bedescribed.

The automatic shuttle replenishing mechanism of the present inventionmay be employed upon various types of looms but is illustrated in thedrawings as applied to a pile fabric loom of the pile wire type.

The loom illustrated in the drawings has been designed more particularlyfor use in weaving carpet, and contains a number of new and highlydesirable features in addition to the shuttle replenishing mechanismclaimed herein. Practically the entire loom has been herein shown anddescribed to make clear the location, function and general mode ofoperation of the loom in its entirety.

The present application therefore constitutes the parent case and thenovel features shown and described but not claimed herein are to be madethe subject of separate applications.

The loom shown has the side frames 1 and 2 of the usual or any suitableconstruction for supporting the operating mechanism and these sideframes are secured in spaced relation to each other by the braces 3 andother connections shown. The side frames 1 and 2 are provided with theelevated columns or structure 4 and 5 adapted to support the harnessmechanism and a Warp beam, and the columns 4 and 5 are connected by therails 6.

At the front of the loom is provided the usual spike or take-up roll 7,the ends of which are journaled in the bearings 8 secured to the frames1 and 2 and this roll is operated from mechanism to be described to takeup the fabric F as woven.

At the rear of the roll 7 is provided the lay 9 which is supported bythe lay swords 10 and shaft 11 for rocking movement towards and from thefront of the loom in a well known manner, and the lay is provided at itsopposite ends with the pickers 12, op-

erated by the picker sticks 13. The beat-up movement is imparted to thelay 9 by the crank shaft 14 and pitman rods 15, as usual, and mountedupon the lay is the reed 16, the upper portion of which is supported bythe reed cap 17 secured to the upper ends of the lay swords by thebrackets 18.

Since the loom illustrated is designed for weaving pile fabric, the loomis shown as provided with lthe upper warp beam 19 rotatably supported bythe columns 4 and 5 and this beam carries the yarnv warp a. In theconstruction shown the stuer yarn b is supplied from the stufer beam 2Orotatably mounted between the side frames 1 and 2 at the rear of theloom, and the supporting shaft of the beam 20 is journaled in thebearing brackets 21. The chain warp 0 is supplied from the chain beam22, which is shown as supported in front of the stuf'fer beam 20 by thebearing brackets 23.

The arrangement of the three let-off beams just described, is such thatan unusually large this the stufer beam 20 is provided, in ac-4 cordancewith the present invention, with the beam elevating levers 24 disposedat the opposite sides of the loom and rigidly secured to the shaft 25which extends between them and is rotatably supported by the side frames1 and 2. rIhe arrangement is such that when it is desired to elevate thestufer beam 20 to permit the removal of the chain beam 22, this isreadily accomplished by removing the cap plates of the bearings 21 and23. The stuffer beam may then be elevated by connecting a chain hoist orother elevating means with the hook portion 26 of each lever to pull thelevers 24 upwardly about the pivoted shaft 25 to elevate the beam 20.

'Ihe levers 24 may be retained in their elevated position by providingeach lever with an arcuate bracket 27 having the notch 28 adapted to beengaged by the sliding pin 29 when the levers 24 are swung upwardly tosubstantially a horizontal position. The levers 24 may be released tomove downwardly to the position in which they are shown in full lines inFig. 2 by retracting the sliding pins 29.

The stuifer yarns b pass from the beam 20 under the shaft 30 and overthe whip roll 32 that is supported for yielding rocking movement, in awell known manner, by the arms 31. and the chain warps c are ledupwardly over a second and similarly supported whip roll 32. In front ofthe forward whip roll 32 is preferably provided the warp stop mechanism33 which may be of anv well known construction and arranged to beoperated to stop the loom when a Warp thread or c breaks or becomes tooslack. This warp stop mechanism preferably has associated therewith anelectric switch, to be described, for stopping the loom when a defect inthe warp occurs. A similar warp stop mechanism 34 is preferably providedfor the yarn warps a, which are shown as passing over the shaft 35 andthen downwardly about the whip roll 36 supported' by the rocking arms 37and from this point the warps pass forward through the heddle frame andreed 16 to the fell of the cloth.

The harness mechanism of the loom illustrated employs four heddle frames38, one for the yarn warps, one for the stuii'er warps,

and two for the chain warps. These heddle frames are operated by a novelform of mechanism for positively raising and lowering the frames asdesired. Each heddle frame 38 preferably is constructed of lightskeleton steel and is supported by the looped end portions of a flexiblecable or other flexible means, the intermediate portion of which is'bentabout a grooved sheave carried by a pulley 39, and the pairl of flexiblestrands 4() and 41 formed by looping the wire or the like about thepulley sheave `39 extend upwardly over a grooved roller 42, and one ofthese strands 40 passes downwardly about a grooved roller 43 to supportthe heddle frame 38 near one end thereof while the. other strand 41extends downwardly about a roller 44 to support the heddle frame nearthe opposite end thereof, as will be apparentfrom` Fig. l of thedrawings.

The endsl of the strands 40 and 41 are looped about cable receivingportions carried by the upper part of the heddle frame and then fastenedto the downwardly extending strandby a clamp 45, as shown. Each of thefour heddle frames 38 shown is su ported from the upper structure 6 of te strands 46 and 47 of an operating cable, or P other flexibleconnection. These strands 46 and 47 for a heddle pass downwardly aboutthe lower rollers 48 and then upwardly about the sheave 48a to a pulley49 positioned below the heddle operating lever 50 for that cable.

The movement of each heddle frame 38 is tion of its lever 50, to operatein a well known lmanner to positively control the movement of the heddlelever. The heddle operating cams 52 are mounted upon and operated by aprojecting portion of the bottom shaft 53. Each upper pulley 39 isconnected to its heddle lever by a turn buckle 54 and link 0r the like55, and the corresponding lower pulley 49 is similarl connected to itsheddle lever by a turn bue le and link connection. The arrangement issuch that should a heddle frame be tilted out of the desr'edhorizontalposition it can readily be restored to the horizontal position byloosening 'the clamps 56 provided upon the heddle operating cables thestrands 40, 41 and 46, 47 connected to a heddle frame may be shiftedabout their cooperating rollers, and the sheaves of the pulleys 39 and49 to bring the heddle frame into ,adjacent the pulleys 39 and 49,whereupon the desired horizontal position. The clamps 56- may then betightened to maintain the frame in a horizontal position. The flexibleoperating connections for the heddle frame are preferably formed ofrelatively small but srong and highly flexible cables which will travelfreely about their rollers even when maintained under strong tension.The vertical adjustment of the heddle frames relative to the lay and thedesired tension upon the cables is readily secured by providing theupper and lower cables with the turn buckles 54.. The harness mechanismof the present invention controls the movement of the heddle frames witha'high vdegree, of accuracy and is to be made the subject of a separateapplication.

Another novel the pickin mechanism for operatingthe picker stic s 13. Inthe embodiment of the invention illustrated each picker stick 13 isoperated from the crank shaft 14 by a downwardly inclined picking shaft57 `which is supported near its opposite ends by the brackets 58 forsliding movement in the direction of its length. The picking shaftvisprovided near its lower end with an arcuate picking shoe 59, which isrigidly secured to feature of the present loom resides in theconstruction and opera-tion of' the shaft 57 -to be actuated thereby,andthe outer end of this shoe is connected to the icker stick by thestrap 60. The picking shaft 57 is provided 'near its upper end with anoperating tongue 61 adapted to be engaged and rocked by a cam ball orroller 62 adjustably mounted on the picker disc 63.

The construction is such that the crank shaft 14 is provided at eachsidel of the loom with a picker disc 63 adapted to be rotated by thecrank shaft, and the ca m ball or roller 62 secured upon one picker discis disposed at an angle of 180 degrees to the cam ball or roller uponthe other disc. The picking shaft 57 at each side of the loom normallyremains in its lowered position in which i'; is shown inv full lines inFig. 2, andas long as the shaft is in this position the operating tongue61' lies below the path of the cam ball 62 so as not to be operatedthereby. When the picker stick at one side of the loom is to be operatedi the pickin shaft for operating that stick is mome-ntari y raised so asto bring its tongue in position to be engaged and operated by the camball 62 to impart the desired movement to the picker stick.

The means shown for temporarily raising a picking shaft 57 consists of alever 64 pivotally supportedl` intermediate its ends at 65 and one endof this lever is preferably constructed so as to straddle the rockingshaft 57 and is provided with the pins 66 adapted to enter the annulargroove between spaced discs on the shaft 57, so that the shaft may beelevated by rocking the lever 64 from its full line position of Fig. 2to its dotted line position of this figure. The desired rocking movementis imparted to the lever 64 at one side of the loom by a cam 67 securedto the bottom shaft 53 as shown in full lines in Fig. 2 and the lever 64at the opposite side of the loom is similarly operated*VV by the cam 67as shown in dotted lines in this figure. In the particular constructionshown the bottom shaft 53 is driven from the cam shaft 14 by the pinion68 and gear 69 at a ratio of one to four, and each of the cams 67 isprovided with two lever actuating portions disposed 180 degrees apart,the arrangement being such that during one complete rotation of thebottom shaft 53 the picker stick at each side of the loom will have twopicking movements imparted thereto. y

It is necessary that the fabric W be advanced towards the front of theloom at the y proper speed, since the number of picks laid per inchdepends to a large degree upon the rate at which the take-up mechanismfor the fabric is operated. In the construction shown the fabric F ismoved forward by positively driving the spike or take-up roll 7 from agoing part of the loom, and the fabric passes around the take-up roll 7and then downwardly to the cloth roll 70, shown in Fig. 2, but not inFig. l, the ends of the roll being rotatably supported by the bearingbrackets 71. In the embodiment of the invention illustrated the spike ortake-up roll 7 is positively driven from the bottom shaft 53 through aworm upon the bottom shaft which meshes with a. worm wheel 72. This wormwheel operates the driving shaft 73 provided adjacent its opposite endswith the universal joints 74 and provided at one end with the telescopicconnection 75. The shaft 73 serves to drive the change gear 76 mountedupon a shaft which is journaled in the bearing bracket 77 and thisbracket is adjustably secured to the side frame of the loom by the bolts77X. The arrangement is such that the change gear 76 drives the uppergear 78 and the speed at which the upper gear is operated from thebottom shaft 53 may be varied as desired by employing different sizechange gear 76. This is facilitated by the vertical adjustment of thebearing brackets 77, that support the change gear.

The upper gear 78 serves to drive the shaft 79 having rotatably mountedthereupon the worm 80 adapted to drive the worm wheel 81 secured to theshaft' of the spike or take-up roll 7.

Since it is desirable from time to time to release the take-up roll fromits positive driving connection to permit the manual rotation of theroll, means are provided whereby the take-up roll may be readilyactuated either manually or automatically, and to this end in accordancewith the present invention a ring gear having external and internalteeth is bolted or otherwise secured to the outer end of the worm 80.Keyed to the shaft 79 for sliding movement thereupon is a gear 82adapted to be moved into and out of interlocking engagement with theinternal teeth of the ring gear. The arrangement is such that the gear82 may be moved inwardly to cause the worm 8O to be positively drivenfrom the shaft 79, and may be moved outwardly to permit the take-up rollto be operated independently of this shaft, the gear being shifted byengaging the nob 83 between theiingers. When the interlocking slidinggear 82 is shifted out of engagement with the ring gear, the lattermaybe manually rotated from the stub shaft 84. The projecting end ofthis shaft is adapted to receive an operating crank handle, and theshaft is provided with a pinion 85 which meshes with and rotates thering gear. The various gears just described are preferably enclosed in acasing 86, shown in Fig. 2.

rI`he novel features of the take-up mechanism just described are to bemade the subject of a separate application.

Various means might be provided for r0- tating the cloth roll 70 to windthe cloth thereupon as it is pulled forward by the spike or take-uproll, and in the construction shown the take-up roll 70 is yieldinglydriven in the cloth take-up direction by the rocking lever 87, which issupported by the fixed pivot 88, see Fig. 2. The rearwardly extendingportion of the lever 87 is normally urged downwardly by the coiledspring 89 and this lever is provided at its rear end with the forkedprongs 90. The upper prong is curved as shown and is adapted to beengaged and elevated as the lay beats up by the projection 91 extendinglaterally from the lay sword 10. The arrangement is such that therocking movement of the lever 87 will actuate the pawl 92 carried bythis lever to engage and rotate the ratchet wheel 93 of the cloth rollin the direction indicated by the arrow. If the tension upon the clothis sutlicient to maintain the lever4 87 in its raised position then thelatter will not be actuated by the movement of the lay until the tensionupon the cloth is decreased.

The take-up mechanism above described serves to posltively advance thefabrlc W forward-at a predetermined speed with respect to the loomoperations. It is therefore desirable to provide means controlled by thetension of the warp threads a, b and c to regulate the unwindlngrotation of the beams 19, and 22 to thereby maintain a constant tensionupon the various rwarp threads. AHaving this in mind the novelconstruction of the let-off mechanism illustrated in the drawings willnow be described.

The let-ofi1 mechanism shown for the stuier beam 20 and chain beam 22 issimilar in construction and each of these beams is provided with theworm wheel 94 and worm 95 cooperating therewith and each worm 95 issecured to a vertical shaft 96, having assosuch that this ciatedtherewith a let-0E brake 97 Unwinding rotative movement is imparted to`each of the beams 20, 22 by slowly rotating the shafts 96 from a goingpart of the loom, and the operation o f this unwinding movement iscontrolled by thel tension of the warp threads b and 0. This is accomplished in the construction shown by providing each of the shafts 96with a ratchet wheel 98 (see Fig. 13) adapted to be rotated by a pawl 99carried by the lever. 100, which is mounted upon the shaft 96 forrocking movement. The rocking movement is imparted to each of the levers100 in the construction shown, from the cam shaft 14 through theemployment of the eccentric 101, mounted upon this* shaft andoperatively connected to the levers 100 by the links 102 andc103. Thearrangement lis such that each complete rotation of the cam shaft 14imparts rocking movement to the levers 100 to actuate the pawls 99. Theamount of rotative movement imparted to the shafts 96 by the pawls 99during one stroke of the lever 100 is controlled in the present case bya pawl guard 104, which is pivotally mount# ed upon the shaft 96 betweenthe pawl 99 and ratchet wheel 98. The construction is accordance wit thetension of the warp threads to control the operating stroke of the pawl99. This is accomplished by providing the whip roll mechanism abovedescribed with a downwardly extending arm 105 to which the pawl guard104 is connected iby a link 106. It will be understood that the whi roll32 is normally urged in the warp tensioning directionv by weight orspring means in a well known manner, and the movement of this whip rollin a left-hand direction,' viewing Fig. 2, will serve to cut `down "theefectiva stroke lof the pawl 99, while the movement of this roll in theopposite direction will serve to increase the active strokeof the pawl99.

The let-olf mechanism illustrated in the drawings for controlling theunwinding ,ac-l

ard plate is positioned in tion of the yarn warp beam 19 is differentfrom that just described as the beam 19 is v 'upon the brake drum. Thewhip roll 36 above described is continuously urged in the warptightening position by the compressed coil spring 114, which surroundsthe rod 115, the lower end of which rod is pivotally fastened tothe'lever 116, that is secured to and extends laterally from the shaft35. The shaft 35 is provided with a finger 117 to raise the lever 111 asthe whip roll36 is moved p frontwardly by the tension the warp a in op.-position to the downward pressure exerted upon the lever 116 by thespring 114.

Many of the features so far described in the present application,constituting the parent case, are believed to be new andpatentable, butare not claimed herein since the present application is directed moreparticularly to the general construction of the carpet loom and theshuttle transfer features, which will now be described.'

As above pointed out an outstanding feature of the present inventionresides in the electrically controlled and actuated means for effectingautomatic shuttle replenishment. It will be understood that theseelectrlcal features may be employed in connection with various forms ofmechanical means for edecting the shuttle transfer.

The lay is provided at its left-hand end in Fig. 1 with a shuttle box,the'rear wall 118 of which, see Fig. 5, has a binder or swell 119 ofusual construction, and the front wall or plate 120 of the 'shuttle boxis supported by a pair of spaced arms 121 for movement to and from theshuttle engaging position.

The arms 121 are adjustably secured to brack- A be described.

' This rocking movement is imparted to the shaft 122 and front plate 120of the shuttle box by a rearwardly extending arm 126 which is" actuatedby a downwardly extending rod 127. Projecting downwardly -from therocking shaft 122 are the ejector actuating arms p 128, each of whichhas pivotally secured to its lower end an ejector 129, the free end ofwhich extends into a hole 130 formed in the rear wall of the shuttlebox. The arrangement is such that when the rod 127 is pulled downwardlyto elevate the plate 120, the ejectors 129 are forced into the shuttlebox to eject an empty shuttle 131, as will be apparent from Figs. 2 and5, whereupon the shuttle will slide down the guiding apron 132 into thebox 133.

The full shuttles 134 are supplied to the shuttle transfer mechanism bythe shuttle magazine 135, which is positioned'l at the left-hand side ofthe loom frontwardly of the lay. The maga-zine is adjustably secured toa bracket 136 mounted upon the loom frame. This bracket adjustablysupports the laterally; extending shaft 137, to which the magazine isclamped. The shuttles in the magazine 135 are normally prevented fromdropping out of the lower end thereof by the holder 138, which issupported by the rocking arms 139 and shaft 140, the arrangement beingsuch that a spring 141 continuously acts upon the arms 139 in adirection to urge the holder 138 to a position beneath the stack ofshuttles.

The shuttle transfer mechanism comprises the shuttle support 142 carriedby the shuttle inserting lever 143, and this support is normally held byits lever below the shuttle magazine and slightly in front of theposition in which it is shown in Fig. 5. When shuttle replenishment iscalled, the lever 143 is momentarily moved frontwardly, by operatingmechanism to be described, into the position in which it is shown inFig. 5, so that the finger 144 upon the lever 143 will engage adownwardl extending portion 145 of the holder 138 an move the holder tothe position in which it is shown in Fig. 5, to permit the lowermostshuttle to drop into the shuttle support 142. The lever 143 is thenmoved rearwardly towards the lay, which is now in its back position withthe front plate 120 elevated as shown in full lines in Fig. 5. As theshuttle support 142 moves rearwardl from the position in which it isshown in BX ig. 5, the holder 138 will be moved by the sprin 141 beneaththe magazine 135 to support t e shuttles therein.

The empty shuttle 131 is discharged from the shuttle box by the ejectors 129 in time to make room for the full shuttle 134, and theshuttle holder 142 is so supported by the lever 143 that it may moveintothe shuttle box as will be apparent from Fig. 6, and while the partsare in this position the wall120 ofthe shuttle box is lowered to theposition in which it is shown in Fig. 6 to maintain the shuttle in theshuttle box while the shuttle inserting lever 143 is moved away from thelay.Y As

soon as the shuttle support 142 has been moved clear of the lay thefront wall may be lowered to its normal loom operating position in whichit is held during weaving by the spring 125, the wall 120 beingsupported in its lowermost position by the adjustable bolts 146.

In the construction shown safety latches 147 are pivotally supportedfrom the hopper so as to lie below the shuttle carrier 142, as shown inFig. 5, the arrangement being such that should the rearward movement ofthe holder 138 fail to separate a pair of shuttles, the lowermostshuttle will drop upon the safetj; latches 147 to be supported therebyuntil t ese latches are rocked frontwardly by the y return of theshuttle inserting lever to its podescribed.

As previously stated an important feature of the present inventionresides in electrical means for .actuatingl the shuttle transfermechanism and this means in the construction shown comprises an electricmotor 148, which may be relatively small as compared to the size of theloom operating motor, to be described. The motor 148 may be mounted upona base plate 149, secured to the gear box 150. Within this gear box inthe construction shown is rotatably supported the worm shaft 151provided'with a worm 152, and this shaft is operatively connected to thedriving shaft of the motor 148 by the coupling 153. The worm 152 drivesthe worm wheel 154 and its supporting shaft 155.

The shaft 155 is provided with a pinion 156 driven by the shaft torotate the gear 157 keyed or otherwise secured to its supporting shaft158. Rigidly secured to the shaft 158 is the ejector cam 159 adapted toengage the roller 160 secured to the intermediate portion of a lever161. One end of this lever is mounted upon the fixed pivot 162 while theopposite endof the lever is pivotally connected at 163 to the downwardlyextending rod 127. This rod, as above pointed out, serves to control theposition of the front plate 120 and the effective length of the rod 127may be adjusted by rotating the nut or turn buckle 164. The

construction of the cam 159 is such that when j feet shuttle transferthe cam 159 will be rotated by the gear connections in the directionindicated by the arrow in Fig. 8. This will cause the nose portion 165of the cam 159 to depress the lever 161 sufficiently to move the shuttlewall 1.20 upwardly-to its maximum position of Fig. 5, so that theejectors will dischar e the empty shuttle 131 from the I shuttle ox,whereupon the arcuate portion ond cam 166 for operating the shuttleinserting lever 143. The lower end of the lever 143 is pivotallysupported by a bracket 167 upon the loom frame and the lever 143 iscontinuously urged in a rearward direction by the spring v168. Theactuation .of this lever to eect shuttle transfer is secured in theconstruction shown by the bell crank lever 169, which is supported bythe fixed pivot 170, and the upwardly extending arm of this bell cranklever is connected to the lever 143 by the adjustably connecting link171, while the laterally extending arm of this lever is provided with aroller 172 adapted to engage the cam 166. This'caln, it should be noted,is provided with the projecting nose 173 adapted to momentarilymove theshuttle inserting lever frontwardly an abnormal amount to actuate theholder 138 to thereby release a shuttle from the magazine. As soon asthis is accomplished the further rotationv of the cam 166 will permitthe lever 143 to move rearwardly under the action of the spring 168 andtransfer the full shuttle to the shuttle box and then return this lever.to its normal position below the shuttle magazine.

The operation of the lever 143 and rod 127 by the cams 159 and 166 toeffect shuttle replenishment takes place during one complete rotation ofthis shaft, the arrangement being such that the motor 148 is stopped bymechanism, to be described, each time the shaft 158 is rotated therebythrough a complete rotation.

Having described the shuttle transfer mechanism and the motor operatedmeans for actuating the saine, the filling control means for initiatingshuttle transfer will now gos be described. This is accomplished in theembodiment of the invention illustrated by employing a filling feeler174 which is located at the right hand sde\of,-the loom in Fig. 1,

and the feeler is illustrated in Fig. 10 of the drawings as'adapted tofeel the condition of a'shuttle 134 having' ahinged part or gate 17 5mounted in anopening in a side wall of the shuttle so that the gate willbe held in its outermost position as long as there is a substantialamount of filling in @the shuttle, but

will be pressed inwardly by the feeler 174 during the fillingfeelingoperation when the filling in the shuttle is approximatelyexhausted.

It will be apparent, however, that other formsof feeler mechanism may beemployed in carrying out the features of the present invention. Thefilling feeler 174 is pivotally secured at its forward end to an arm 176that extends upwardly from the detector shaft 177 that is pivotallysupported by brackets secured to the loom frame, and the feeler is heldin substantially a horizontal position opposite the opening in theshuttle box by a downwardly extending pin 178. The detector shaft'177 isprovided adjacent its opposite end with a downwardly extending arm 179,see Fig. 5, and to this karm ifs connected a rearwardly extending rod180 adapted to control the position of a rocking latch 181, pivotallysecured at )182 to the outer end of a switch operating lever 183. Thelever 183 is pivotally supported at 184 and is continuously urgedfrontwardly towards the stop 185 by the spring 186. The latch 181 isprovided with the stop 187 adapted to strike the lever 183y when thelatch is rocked upwardly to the position in which it is shown in Fig. 5and the latch is continuously urged to this position by its spring 188.The construction of the latch 181. is bestshown in Fig. 5a where itsdownwardly extending arm 189 is shown as provided with `a slot 190adapted to slidably receive the rear end portion of the rod 180.

The operation of the filling feeling mechanism just described is suchthat the rod 180 is relied upon to hold the latch 181 in its inclined orinactive position of Fig. 3, and to this end therod 180 is provided witha collar 191 secured in position to abut against the arm 189 of thelatch to hold the same tilted. When on a detecting beat there issufiicien-t filling in the shuttle to prevent the gate 175 from yieldinginwardly under the pressure of the feeler 174, this feeler will bepushed frontwardly by fthe gate 175 and this will thrust `the rod 180rearwardly sufiiciently to tilt the latch 181 out of the path of theabutment or bolt 192 carried by the lay. If, however, the feeler 174detects substantial exhaustion of filling in the shuttle, then thefeeler will not be pushed frontwardly by the gate 17 5 far enough tocause the latch 181 to clear the bolt 192, and as a result the latch 181and lever 183 will be forced rearwardly as the lay-goes back as shown inFig. 5. Movement of the lever 183 rearwardly causes a dog 193 carriedthereby to rotate the ratchet whe. 194 and toothed cam wheel 195 todepress the switch actuating roller 196, see

Fig. 3. This will operate a switch within the switch box 197 to stop theloom and start the replenishing motor 148 in a manner to be described.The electrical conductors leading to the switch box 197 may be enclosedin the armored cable 198.

It will be understood from the construction just described that when ashuttle containing a substantial amount of filling is in the right-handshuttle box as the lay beats up, the filling controlled gate 175 of theshuttle will not yield inwardly under the pressure of the feeler 17 4,and as a result the rod 180 will be shifted rearwardly far enough tohold the pivoted lever 181 out of the path of the bolt 192. If, however,the filling in the shuttle is sufficiently exhausted to permit the gateto move inwardly under the action of the feeler, then the fron-twardmovement imparted to the feeler by the laywill not be sufficient to rockthe pivoted lever 181 out of the path of the bolt 192 with the resultthat the lever 183 will be actuated by the lay movement to operate theswitch mechanism and stop the loom 'driving motor and start the shuttlereplenishing motor 148.

It is important that means be provided for holding the pivoted lever 181out of the path of the bolt 192 when the shuttle is at the lefthand sideof the loom. This is accomplished in the embodiment of the inventionillustrated by providing the detector shaft 177 with the stop lever 199,adapted to engage the stop lever catch 200, which is mounted upon thefixed pivot 201 for rocking movement towards the stop pin 202, see Fig.3, under the action of the spring 203. The arrangement is such that thestop lever catch when engaged by the stop lever will hold the feeler 174retracted, as shown in Fig. 3. Means are provided for tripping the stoplever catch 200 as the lay beats up with the shuttle 1n the fillingfeeler or right-hand shuttle box. This is accomplished by providing abinder controlled lever 204, which is pivota'lly mounted upon thestud'205 carried by the lay.

The lever 204 has an upwardly extendmg finger 206, which rests againstthe swell or binder 119, as sh-own in Fig. 3, to b actuated by themovement of the binder. The lever 204 is also provided with thefrontwardly eX- I tending finger 207, the arrangement being such thatwhen a shuttle is in the filling feeling box it will act throu h thebinder to tilt the lever 204 so that the nger 207 will move upwardlysufiiciently to strike the lower end 208 of the lever 200 and releasethe feeler 174 to feel the condition of the filling. When the` shuttleis in the left-hand shuttle box as the lay beats up, the swell 119 willnot raise the finger 207 to release the feeler 17 4. The stop levercatch is formed of the two pivoted portions 200 and 208, as shown, whichare normally held in vertical alignment with each other by the spring203, but are so constructed that the lower end portion may yieldrearwardly if engaged by the finger 207 when the lay goes back from theposition in which' it is shown in dotted lines in Fig. 5 to the positionin which it is shown in full lines in this figure.

1t will be seen from the construction just described that the fillingfeeler 174 is normally held in its inactive position of. Fig. 3 by thestop lever catch 200 and is released by this catch to detect thecondition of the filling, only when the shuttle is in the fillingdetecting box, and the latch is tripped by the finger 207. After thecatch 200 has been rocked to release the filling feeler 174, so that thefeeler may move to the position in which it is shown in Fig. 5 andeffect shuttle replenishment, the feeler will remain in this rearwardposition until replenishment of filling is effected and the feeler 174is again pushed frontwardly by the filling of a full shuttle, whereuponthe stop lever catch 200 will again engage the underface of the stoplever 199, as shown in Fig. 3.

After the empty shuttle has been discharged fromthe lay and a fullshuttle has been substituted therefor, by the transfer mechanism, atrailing end will be left by the full shuttle as it travels from theshuttle magazine through the shed. It is desirable to trim this trailingend adjacent the selvage of the cloth, and means to this end will now bedescribed.

In the embodiment of the invention illustrated filling shearingmechanism is provided adjacent the filling fork, as will be apparentfrom Fig. 14, and this shearing mechanism comprises a fixed shear plate209, which is shown as secured to a trough-sha1: ed bracket 210, whichis rigidly mounted upon the loom frame to slidably support the fillingfork carrier 211. The rocking blade 212 of the shearing mechanism issupported by the pivot pin 213 having the spring 214 which yieldinglyholds the movable blade 212 against the fixed plate 209 and serves alsoto provide sufficient friction between these two blades to maintain themovable blade in the position to which it is moved by its actuating rod215, which extends downwardly and is connected to an actuating arm uponthe rocking shaft 216. The shaft 216 is provided with means, not shown,but adapted to be actuated by the pivoted finger 217 carried by the lay.The arrangement is such that one beat-up movement of the lay causes thefinger 217 to rock the shaft 216 in a direction to open the shear blade212 and the next beat-up of the lay will rock the shaft 216 in theopposite direction to close the movable shear blade and shear thefilling end, if the same has been advanced by the moving fabric to aposition between the shear blades.

It is important that means be provided for stopping the loom upon theoccurrence of a mis-pick and to this end in the embodiment ing is arocking of the invention shown a filling fork 218., which may be of theusual construction, is provided and this fork is pivotally mounted atthe inner end of the filling fork carrier 211, above described asslidably mounted in the bracket 210. The arrangement is such that whenthe loom is operating` properly and a strand of filling is laid betweenthe downwardly extending prongs of the filling fork and an adjacentportion of the lay, the frontwardly extending portion of the fillingfork will be rocked upwardly sufliciently to clear a moving actuator, ina well known manner, but when the filling is missing the filling forkwill not be tilted and as a result the forward end will be engaged bythe actuating member, which will move the slide 211 frontwardly tooperate loom controlmechanism. In the construction shown fork when thefilling is miss-- lever 219, the lower end of a fixed pivot 220, and

gage the filling which is mounted upon this lever is yieldingly urged ina rearward direction by means not shown, but is actuated upon everyother beat of the lay by the finger 217. to move frontwardly so that ashoulder ating 221 at the upper end of this lever will engage thefilling fork 218 if the filling is missing and pull the fork and slide211 frontwardly.

This forward movement in the construction shown causes a rod 222 at theforward end of the'slide 211 to engage a switch actulever 223 and shiftthe same so as to actuate a limit switch enclosed within the casing 224.This switch is supplied with current by conductors within the armoredcable 225. The actuation of this limit switch will serve to stop theloom motor in a manner to be described.

The loom illustrated in the drawings is provided with wire operatingmechanism for the insertion of pile wires in the shed and for removingthem from the pile fabric. The pile wire mechanism in the constructionshown is mounted at the right-hand side of the loom and is supported bvproviding this Aside of the loom with the horizontally extendingsupporting structure 226 and end frame 227. Upon this supportingstructure is mounted the wire slide or carriage runway 228 upon which isslidably mounted the wire operating carriage 229. This carriage' isprovided with the wire inserting plate 230 and spring actuated wirewithdrawing hook 231. Upon the upper face of the wire slide 228 ismounted the pivoted. spring operated switch 232. which is adaptedl torock about the pivot pi-n 233. The arrangement is such that when a wireis withdrawn'by the hook 231 it travels along the guideway 234 and whena wire is inserted by the plate 230 it travels along the inclined path235.

Each time a wire is withdrawn from-the pile fabric it is necessary toretract the same far enough to cause its inner end to clear the themeans adapted to enrearwardly butt ends 236 of the row of wires whichhave not been withdrawn from the fabric, and before the withdrawn wirecan again be inserted in the shed its forward end must be shiftedrearward a substantial distance be ond the row o wires 236.

he present invention contemplates novel means for quickly shifting theforward end of each wire to its rearward position as the insertingoperation of the wireis initiated. This is accomplished in 4theconstruction shown by supporting a sliding rack 237 above the wire slide228 for movement transversely of the wire slide and this rack ispreferably slidably mounted in the enclosing casing 238 supported at theright-hand side of the loom near the 1. The rack 237 is provided at' itsrear end with a yielding wire engaging finger 239 adapted to engage theforward end of the retract pile wire and move the same rearward intoengagement with the wire guide 240, which is supported in a fixedposition by the rod 241 adjacent the shed, see Fig. 11. In order tocarry the forward end of the rod from the position in which it is drawnout of the fabric into the guide 240, it is necessary tothrust thesliding rack 237 rearwardlyand this is accomplished by providing therack with acooperating gear 242 which is secured to and operated by thevertical shaft 243. Rotative movement is imparted to this shaft byproviding at its lower` fi-ont thereof as shown in Fig.

wire in this guide during a part of the time it is being inserted in theshed by the carriage 229. The rear portion of the `pile wire may befurther guided during its wire in-l guide 246. orted as shown above thewire slide 228.-

serting position by the auxiliary Supp The wire inserting mechanism justdescribed operatesina very satisfactory manner to quickly carry the wirerearwardly into position to be inserted in the shed.

The wire retracting carriage 229 should be advanced rapidly in the wireinserting direction but more slowly in the wire retracting direction, soas not to cut the pile forming loops too rapidly during the withdrawalof the pile wire. The operating means shown for imparting this desiredmovement to the carriage comprises the operating lever 247, the lowerend of which is pivotally secured at 248 to the bracket 249 extendingdownwardly v from theloom frame 226. The upper end link 250. The desiredrocking movement is imparted to the lever 247 in the construction shownby the crank arm 251, which is rigidly secured to the operating shaft252. This shaft is conveniently driven from a bevel gear 253 secured tothe bottom shaft 53 and meshes with the bevel pinion 254 provided at theinner end of the shaft 252.

In the weaving of different pile fabrics it may be desirable to adjustthe loom so ythat it will lay either two picks for each row of pile orthree picks for each row of pile, and it`may also be desirable to weavefabric of different width on the loom. In order to facilitate thesechanges in the operation of the loom the crank shaft 251 in theconstruction shown is provided with the adjustable means 255 whereby itseffective length may be varied, and the lever supporting bracket 249 isprovided with a pivot receiving opening 256, adapted to facilitate theuse of a shorter carriage operating lever than that shown in thedrawings. The outer end of the crank arm 251 is provided with a head 257that slidably engages the intermediate portion of the lever 247.

The loom of the present invention is preferably driven by an electricmotor 258 which is shown as mounted at the right-hand side .of the loomupon the supporting structure for the wire inserting mechanism. The op#erating shaft of this motor is provided with a pinionV 259 that mesheswith a gear 260, which may be directly secured to the crank shaft 14.The motor employed to operate the loom should have a high startingtorque, and since it is important that the loom shall stop uickly whenthe power to the motor is cut o the present motor 258 is shown as havingassociated therewith an electrically controlled brake, comprising therotating element 261 secured to the motor shaft and which is positionedto rotate between brake shoes pivotally supported by the rocking levers262. These levers are continuously urged towards each other in the brakeapplying direction by the spring V263. The arrangement is such that thebrakes are held normally applied and are released by exciting a solenoidwithin the casing 264 and which operates through the connecting rod 265to force downwardly the outer end of the lever 266 forming one elementof the toggle 267 adapted to force the brake applying levers 262 apartsufiiciently to release the brakes from thel motor.

Having described the various parts of the loom of the present inventionand having pointed out that the loom is driven by4 an electric motor 258while the shuttle transfer mechanism is operated by a separate anddistinct electric motor 148, one form of wiring for controlling thesemotors 1n accordance with the present invention will now be described. i

Referring to the electric diagram shown in Fig. 15 of the drawings thecircuits disclosed therein are adapted to operate a motor employing athree phase electric current, and the operating current obtained fromany suitable source'of supply is conducted by the wires 268 to a fusebox `269. The current is supplied from this box to the mechanism to bedescribed by the conductors 1, 2 apd 3 upon closing the hand operatedswitch 2 0.

The conductors 1, 2 andk 3 lead to an electrically operated switch Mwhich controls the current supplied to the loom operating motor 258. Thecurrent for releasing the solenoid brake 262 is controlled by theelectrically operated switch B, which receives current from two of thethree conductors, and is shown as connected to the conductors 1 and 2.The electrically operated switches M and B may be of well knowncommercial construction and it should be noted that one of the threecontact elements of the switch B has no electrical connections, sincetwo conductors are sufficient to control the brake solenoid.

When the switch M is closed current is supplied to the loom motor 258 bythe conductors M1, M2, and M3. These conductors lead from the switch Mto a terminal board 271 and from the terminal board to the motor 258.Current is Supplied from the `switch B through the conductors B1 and B2to the terminal board 271 and from this board to the solenoid brake 262.The construction of the operating switch M is such that it will openautomatically but is held closed by excititng the solenoid or controlcoil CM located adjacent the switch M and included i'n a control circuitto be described, likewise the operating switch B will open automaticallyand is controlled'by the solenoid or control coil CB included in acircuit to be described. The arrangement is such that the loom operatingmotor 258 will be started as soon as the coil CM is excited to maintainthe switch M closed and this motor will stop when the exciting currentto the coil CM is cut ofi'. Thev brakes for the motor 258. as abovestated, are normally applied by spring means.-

These brakes are released by exciting the control coil CB and areapplied to stop the loom and hold it against operation by cutting oi thecurrent to the coil CB.

The motor 148 employed to operate the shuttle transfer mechanism mayhave a much lower horse power than the loom operating motor 258- but isconveniently operated by the current supply conductors 1, 2 and 3, abovedescribed. and the current to the motor 148 is controlled by anoperating` switch S. Which may be similar in construction and operationto the switch M, and the operation of the switch S is controlled by asolenoid or control coil CS included in a control circuit t0 bedescribed. Current is supplied from raising 217.

the operating switch S to the motor 148 by the conductors S1, S2, andSs, which lead to the terminal board 271 and from this board to themotor 148.

When the loom operating motor 258 is to be started the coil CB isexcited to release the brakes and the coil CM is excited to close theswitch M that supplies current to the motor 258. Itis important thatmeans be pro-V vided for manually starting and stopping the loom, and itis also desirable that means be provided for stopping the loom when adefect in the weaving operation occurs, for example, the loom should bestopped when either of the warp stop mechanisms 33 or 34, abovedescribed, detect a broken or exd cessively slack warp strand. The loomshould also be stopped when the filling fork 218 detects the Kabsence offilling and operates th'e go loom switch within the casing 224.

It is important that the loom be stopped if a shuttle is'improperlyboxed and this may be accomplished by providing the usual daggercontrolled by the shuttle box binder and z5 adapted to engage a frog ina well-known manner to stop the loom when a shuttle is not properlyboxed, but it is also desirable to provide the present electricallyoperated loom with switch mechanism to stop the driving motor when ashuttle is improperly boxed.

The electrical connections whereby the loom will sto and the brakes willbe applied when any o lthe defects above mentioned occur, will now bedescribed.

In order to secure the desired manual control of the loom operatingmotor the loom illustrated in the drawings is provided with `the switchbox 272', conveniently located at the front of the loom adjacent thewire operating mechanism and upon this switch box is pivotally mounted ahand operated lever 27 3 which when rocked in one direction will depressa push button 274to start the loom,

and when rocked in the opposite direction will depress a push button 275to stop the loom. l l

In addition' to the manually controlled switch mechanism just mentionedmeans are provided,-as above described, whereby when the filling feeler174 detectsl substantial exhauston of filling the switch n ieclm'nism`in the switch box 1971willbe operated to first stop the loom mo'tor 258vand then start the shuttle transfer motor 148, and after the shut- 55.tletransfer operation has been completed, it l is important that meansbe provided for automaticall stopping the motor 148 and starting. theoom'm'otor. The switch mechanism last mentioned is shown as enclosed ina switchbox 276 conveniently mounted upon the gearbox case 150l andprotected by the The switch 27 6 is operated by secured tothe cam shaft158 and so constructed that as the shaft its cyclelof rotation avprojecting nose upon the cam 278 will force the spring depressedplunger 279 upwardly to .rock the switch arm 280 and actuate the switchmechanism within the box 276 to thereby stop the motor 148 and start themotor 258 in a manner to be described.

It is important that means be provided for preventing the loom frombeing started during the operation ofthe shuttle transfer mechanism.This is accomplished in 'accordance with the present invention byproviding the shaft 158 with a fourth cam 281, the outer periphery ofwhich has the contour of a 'circle except for a depression, 282 providedtherein. The arrangement is such that the loom motor258 may be operatedonly when the spring depressed plunger'283 rests in the depression 282,and as a result this plunger is held elevated until the cam 281 isrotated through a complete cycle and the plunger again drops in thedepression 282. As long as the plunger 283 is elevated, a switch withinthe switch box 284 will be held open so that the loom motor cannot bestarted.

ln some cases in operating the loom of the present invention it may bedesirable to release the solenoidv -control brake without starting theloom motor, so that the motor may be turned over by hand. In order toaccomplish this a master switch is provided and is shown in Fig. 1 asmounted at the front -of the loom within the casing 285. Within thiscasing isl provided the switch operating shaft 286 which is provided atits outer end with a handle 287, and the arrangement is such that ifAthis handle is rocked to the position I, b otlrthe loom operating motorand brake will be under the control of a hand operating lever.. 27 3,Iwhereas if the handle 287 is rocked to the position II the electricbrake alone will be .under the control of the hand operated lever 273.When the handle 287 is rocked to the O position all circuits are open.

To the rocking shaft 286 are secured the three closure plates 288, 289and 290 arranged so that-when the shaft 286 is rocked -to one position,to be described, these plates will engage one. set of contacts, and whenthe shaft is rocked in the opposite direction they will engage the otherset of contacts.

The electrical'connections for placing the three electrically operatedswitches M, B and S under the control of the master switch 287, handoperated lever 273, shuttle transfer switch 197, transfer motor stoppingswitch 276 andvarious limit switches will now be described.v

Let it be assumed that the loom is to be started; this is accomplishedby shifting the master switch from its-O or central position of Fig. 15to the I position of Fig. 16, and by shifting the hand lever 273 to theright (Fig. 1) to depress the starting switch 274 fromits normallyraised position to its nov and 'i respectively.

through L to the limit switch NVS of thevwarp stop mechanism 33; limitswitch W S of the warp stop ymechanism 34; limit switch FF of the llingfork control mechanism 224; and a limit switch BF of the binder fingercontrol switch above mentioned. These limit switches are connected, inseries, and are all closed when the loom is in proper operatingcondition, and permits the current to pass through the conductors z, tothe contact points a2, and c3 of the master switch. From these pointsthe current flows through the closures 289and 290 and conductors z and'j to the control coils CM and CB connected to the conductor 2. Thiscompletes the circuit between conduct'ors 1 and 2 and excites the coilsCM and CB to close the electrically operated switches M and B to releasethe brakes and start the loom motor.

The circuit just described will remain closed only momentarily, since assoon as the hand lever 273 is released by the machine attendant it willautomatically move to its central position of Fig. 1 and the startswitch 274 will return to its full line position of Fig. 15.

To take care of this, the electrically operated switch M is providedwith an auxiliary contact switch 7c that is opened and closed with theswitch M, and the switch B is provided with a similar auxiliary contactswitch c. The contact switches 7c, lc are connected by the wide Z', towhich wire is connected the conductor m. Connected in series by theconductor m are the thermal relays R1, R2 of Well known construction,and they areV arranged between coils in the circuits, M1, M3 and B1, B2`respectively, as shown. The arrangement is such that these relays willopen the circuit and stop the loom in case of an overload.

When the start button 274 returns to its full line position of Fig. 15after closing the switches M and B by exciting the coils CM and CB, thecurrent for exciting these coils will flow from conductor 1 throughswitch or 7c and through m to the closed stopping switch 275. From thisswitch the current will flow through the series of limit switches andother circuits, as above described, to the coils CM and CB through j The100m may be stopped by rocking the hand lever 273 to the left to openthe stop switch 275, or by the opening of any one of the limit switchesin the circuit h, or by the opening of a relay switch R1, R2 0r themaster switch 287.

When it is desired to release the brakes 262 without starting the loommotor 258, so that the loom may be turned over` by hand the masterswitch is rocked to the II position so that the circuit controlling thecoil CB will remain under the control of the starting button 274 andstopping button 275 but the circuit for controlling the coil CM. willremain open. The shifting of the master switch to this last mentionedposition will serve also to shunt the limit switches WS, W S', FF andBF, so that the brakes may be released even if one or more of theseswitches are held open by a defective condition of the loom.

If the hand operated lever 273 is operated to depress the startingswitch 27 4 current will flow through the circuits above described fromthe conductor 1 to the switch 284 and from this switch through z, andshunt wire n to contact a4 and then through closure 288 and conductorsP, l1. to contact a5. If then flows from a5 through closure 289 andconductor i to coil CB but not to coil CM.

Having described the controlling mechanism for the loom motor 258 andbrakes 262, the mechanism for automatically controlling the motor 148 soas to start the same and stop the loom motor when shuttle replenishmentis called, and to stop the motor 148 and start the loom when the shuttlereplenishing operation is completed, will now be described.

The electrically operated switch S for the motor 148 is controlled bythe coil GS connected to the conductor 1 by the wire g, and this wire isprovided with the thermal relay R3 for stopping the motor 148 in case ofoverload. The conductor g leads to the lower normally closed switch ofthe switch box 276 and this switch is connected to the normally closedstarting switch 27 4 by the conductor r. The switch 274 is connected bythe conductor s to the lower and normally open switch of the swith box197, and this last mentioned switch is connected by the conductor t tothe conductor 3. The upper switch of the switch box 276 is normally openas shown, and controls the circuit u between the conductor m andstarting switch 274. The upper and lower switches of the switch box 197are mechanically connected as shown so that they move together and thecircuit controlled by one switch is opened before the circuit controlledby the other switch is closed. The same is true also of the switches inthe switch box 2 6.

When the filling feeler 174 detects substantial exhaustion of filling itwill position the pivoted latch 181, as above described, to be struck bythe lay. This will rotate the `toothed cam wheel 195 to momentarilyVopen trically operated switch S, which may be loom, in combination, alay .ing

the shuttle transfer mechanism and means similar to switch M, and startthe motor 148,

whereupon the auxiliaryswitch 'v is closed.-

y way of 3 through Current may then flow g and the v, fw, s, 274, r,lower switch of 276, coil CS to 1. When the cam carrying shaft 158 hasbeen rotated by the motor 148 through a complete cycle, the switches ofswitch box 276 will b e momentarily shifted by the cam 278. This willopen the lower switch of switch box 276 to cut olf the current to thecoil CS and stop the motor 148. It will also close theupper switch ofthe switch box 276, whereupon cur- J rent may iow from d to e through u,and from 275 to f and g and the master switch to release the brakes andstart the loom motor as above described. l,

The loom is readily controlled through the electrical connections abovedescribed, and is quickly stopped when any one of the hmit switches isactuated as a result of a defect in the loom operation, or whenshuttlereplenishinent is called for by the filling feelin mechanism.Vhat is claimed is:

Claims: y

1. In a carpet loom having an automatlc Y shuttle replenishing mechamsm,in combination, a lay provided with shuttle boxes, a shuttle magazinemeans for ejecting an exhausted shuttle from a shuttle box and forinsertin a full shuttle therein filling feeling mec anism for initiatingshuttle transfer, a driving motor for the loom, a separate motor foroperating the shuttle transfer mechanism, and means controlled by thefilling feeling mechanism for starting the motor that operates theshuttle transfer mechanism.

2. In an automatic shuttle replenishing provided with shuttle boxes, ashuttle magazine, means for discharging an exhausted. shuttle from ashuttle box and for inserting a full shuttle therein, filling feelingmechanism for initiating shuttle transfer, power means for operattheloom, an electric motor for operating for starting the motor to effectshuttle transfer and for stop ing the motor as soon as the transfer iscomp eted.

3. In 'an automatic shuttle replenishing loom, in combination, a layprovided .with shuttle boxes, a shuttle magazine, means for dischargingan exhausted shuttle from a shuttle box and for inserting a full shuttletherein, filling feeling mechanism for initiat- 'ing shuttle transfer, adriving motor for the Current may then iiowlower switch of 276 and loom,a separate motor for operating the shuttle transfer mechanism, and meanscontrolled by the filling feeling mechanism for stopping rthe loom andstarting the motor that operates the shuttle transfer mechanism.

4. ln an automat-ic shuttle replenishing loom, in combination, a layprovided with shuttle boxes, a shuttle magazine, means for dischargingan exhausted shuttle from a shuttle box and for inserting a full shuttletherein, a driving motor for the loom, a separate motor for operatingthe shuttle transfer mechanism, and filling feeling mechanism forinitiating shuttle transfer and provided with switchl means for stoppingthe loom motor and starting the shuttle transfer motor when substantialexhaustion of filling is detected.

5. In an automatic shuttle replenishing loom, in combination, a layprovided with shuttle boxes, a shuttle magazine, means for dischargingan exhausted shuttle from a shuttle box and for inserting a full shuttlerate motor for operating the shuttle transfer c mechanism, fillingfeeling mechanism operable to stop the loom motor and start the shuttletransfer motor when substantial exhaustion of filling is detected, andmeans operable by theshuttle transfer motor as the transfer is completed-to stop this motor and start the loom operating motor.

6.- In an automatic shuttle replenishing loom, in combination, a layprovided with shuttle boxes, a shuttle magazine, means for dischargingan exhausted shuttle from a shuttle box and for inserting a full shuttletherein, a driving motor for the loom, a separate motor for o eratingthe shuttle transfer mechanism, filling feeling mechanism operable tostop the loom motor and start the shuttle transfer motor whensubstantial exhaustion of filling is detected, and means under thecontrol of the shuttle transfer motor for preventing the loom motorfron: being started during the shuttle transfer operations.

7. In an automatic shuttle replenishing loom, in combination, a layprovided with shuttle boxes, a shuttle magazine, means for dischargingan exhausted shuttle from a shuttle box and for inserting a full shuttletherein, filling feeling mechanism, a driving motor'for the loom, anelectrically controlled brake associated'with the motor to stop the loomquickly, a separate motor for operating the shuttle transfer mechanism,switches for controlling the brake and motors, switch actuatingmechanism operable to stop the loom motor, apply the brake and start theshuttle transfer motor, and means controlled by the filling feeler toinitiate the shuttl transfer operations.

8. In an automatic shuttle replenishing loom, in combination, a layprovided with shuttle boxes, a shuttle magazine, means for

